Quarries produce extractive minerals including sand, gravel, stone, shell or clay, although these materials are not considered extractives if they are used for industrial, agricultural and ornamental (dimension stone) uses. This includes exclusions for some clay (fireclay, bentonite or kaolin).

  • Dark fine-grained volcanic rock

  • Surface layer of rubbly or sheet limestone up to 2 m thick, common throughout South Australia

  • Natural plastic clay deposits deposited as sediment (minerals for refractory bricks, for example sillimanite or fire clay, industrial minerals)
  • Includes white and red plastic clay

  • Dark, medium-grained igneous rock

  • Sedimentary rock containing greater than 50% of the mineral dolomite (calcium magnesium carbonate)

  • Banded or foliated metamorphic rock, usually of the same composition as granite

  • Banded or foliated metamorphic rock, usually of the same composition as granite

  • Coarse-grained light-coloured igneous rock consisting chiefly of quartz, feldspar and mica

  • Creek or river gravel including buried deposits

  • Lateritic soils and ironstone cappings

  • Sedimentary rock containing greater than 50% of the mineral calcite (calcium carbonate)

  • Metamorphic rock formed by alteration of limestone or dolomite

  • Coarse-grained light-coloured crystalline rock composed chiefly of minerals found in granite

  • Rock formed from the metamorphism of sandstone

  • Fine-grained volcanic rock similar to granite in composition

  • Mortar, plaster and bricklaying sand
  • Concrete sand
  • General filling, garden sand, paving and landscaping sand, loam
  • Specification filling sand for pipeline trenches etc
  • Road and track construction sand

  • Sedimentary rock containing sand-sized particles mainly quartz

  • Medium-grained to coarse-grained metamorphic rock composed of laminated layers of micas

  • Fine-grained sedimentary rock composed mainly of clay-sized particles that is easily split into thin layers

  • Red-firing or other darker coloured-firing weathered shale

  • White or cream, pale-firing weathered shale

  • Sand made up of shell fragments

  • Sedimentary rock composed mainly of silt-sized particles that is not easily split into thin layers
  • Intermediate between sandstones and shales

  • Fine-grained metamorphic rock that splits into thin, smooth-surfaced layers